EP0799699B1 - Tête stratifiée d'enregistrement à jet d'encre - Google Patents

Tête stratifiée d'enregistrement à jet d'encre Download PDF

Info

Publication number
EP0799699B1
EP0799699B1 EP97105639A EP97105639A EP0799699B1 EP 0799699 B1 EP0799699 B1 EP 0799699B1 EP 97105639 A EP97105639 A EP 97105639A EP 97105639 A EP97105639 A EP 97105639A EP 0799699 B1 EP0799699 B1 EP 0799699B1
Authority
EP
European Patent Office
Prior art keywords
pressure generating
ink
communicating holes
generating chambers
ink supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97105639A
Other languages
German (de)
English (en)
Other versions
EP0799699A2 (fr
EP0799699A3 (fr
Inventor
Takahiro Katakura
Kazumi Kamoi
Minoru Usui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of EP0799699A2 publication Critical patent/EP0799699A2/fr
Publication of EP0799699A3 publication Critical patent/EP0799699A3/fr
Application granted granted Critical
Publication of EP0799699B1 publication Critical patent/EP0799699B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/16—Production of nozzles
    • B41J2/1621—Manufacturing processes
    • B41J2/1623—Manufacturing processes bonding and adhesion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2/14201—Structure of print heads with piezoelectric elements
    • B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/16—Production of nozzles
    • B41J2/1607—Production of print heads with piezoelectric elements
    • B41J2/161—Production of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2002/14387—Front shooter

Definitions

  • the present invention relates to a laminated ink jet recording head that is formed by laminating at least a first cover member, a spacer, and a second cover member and that is fixed to a passage unit having nozzle openings and common ink chambers, the first cover member having piezoelectric vibrators fixed to a surface thereof, the spacer forming pressure generating chambers therein, the second cover member having communicating holes communicating with the common ink chambers and a nozzle plate.
  • ink jet recording heads can implement extremely high resolution printing by reducing the size of each ink droplet.
  • the number of nozzle openings must be increased, and when piezoelectric vibrators are used as an ink droplet jetting source, the downsizing of the piezoelectric vibrators is an essential consideration.
  • an ink jet recording head using flexural vibration as an actuator the actuator unit, which includes a first cover member having piezoelectric vibrators fixed to a surface thereof, a pressure generating chamber forming board forming pressure generating chambers, and a second cover member, can be made of ceramics.
  • a passage unit that supplies ink to the actuator unit and jets the ink pressured by the pressure generating chambers in the form of ink droplets must have a number of nozzle openings, each being formed with high accuracy to a diameter of about several tens of ⁇ m.
  • a thin plate made of metal is usually used and is bonded to the actuator unit through an adhesive.
  • nozzle openings are pitched at a small interval, e.g., at an interval of about 210 ⁇ m, a bonding area becomes extremely narrow. As a result, the nozzle openings are clogged due to the adhesive flowing into the nozzle openings and ink leakage occurs, which in turn has caused the problem of impaired ink jetting performance.
  • a laminated impulse jet print head which comprises a plurality of superposed, contiguous plates including a nozzle plate with nozzles for ejecting ink droplets, a channel plate comprising chambers which communicate with an ink supply and the nozzles, a diaphragm plate overlying the channel plate and having transducers thereon for pressurizing the ink in each of the chambers.
  • the nozzles, the chambers and the transducers are arranged in one or more lines.
  • JP 9150508 discloses an ink jet type head which shows reduced interference between adjacent nozzles.
  • the ink jet type head comprises a channel forming member wherein a plurality of parallel stripe channels are provided. On one end of each channel the channels are integrally communicating with a common ink chamber which supplies ink. Furthermore, a plurality of nozzles for allowing the ink to be ejected, a diaphragm applied to the channel forming member and a plurality of piezoelectric elements for pressurizing the ink are provided.
  • the nozzles are arranged in zigzag along two rows.
  • the present invention has been made in view of the aforementioned problem and it is therefore an object of the present invention to provide a novel laminated ink jet recording head that has an increased bonding area in the vicinity of nozzle openings that are pitched at a high density.
  • the present invention provides a laminated ink jet recording head as specified in claim 1.
  • the present invention is applied to a laminated ink jet recording head comprising: (A) an actuator unit including: pressure generating chambers for pressurizing an ink; and piezoelectric vibrators arranged on the pressure generating chambers; the piezoelectric vibrators expanding and contracting the pressure generating chambers to jet the ink in the pressure generating chambers; and (B) a passage unit bonded to the actuator unit, including: ink supply ports for supplying the ink to the pressure generating chambers of the actuator unit; and nozzle openings for jetting out the ink; wherein the ink supply ports, pressure generating chambers and nozzle openings are communicated by communicating holes provided in the actuator and passage units, the nozzle openings are formed so as to stagger, and the pressure generating chamber, communicating hole, and ink supply port are arranged at uniform positions relative to one another with respect to the pressure generating chamber so as to match a mode of arraying of the nozzle openings.
  • the bonding area is increased by shifting the positions of the nozzle openings and the ink supply ports, whose diameter is particularly small, in the axial direction of the pressure generating chambers. In addition, distortions derived from the boring of these nozzle openings and ink supply ports are scattered.
  • Fig. 1 is a sectional view showing a structure of an inkjet recording head having pressure generating chambers.
  • reference numeral 2 denotes a first cover member that is made of a zirconia thin plate whose thickness is about 10 ⁇ m.
  • Drive electrodes are formed on the surface of the first cover member so as to confront pressure generating chambers 7, 7'.
  • Piezoelectric vibrators 4, 4' made of PZT or the like are fixed onto the surfaces of the drive electrodes.
  • Reference numeral 6 denotes a spacer, which is formed by boring through holes in a ceramic plate such as zirconia (ZrO 2 ), the ceramic plate having such a suitable thickness as to form the pressure generating chambers 7, 7' therein, such thickness being, e.g., 150 ⁇ m.
  • the pressure generating chambers 7, 7' are formed in the spacer 6 with both surfaces of the spacer 6 sealed by a second cover member 8 to be described later and the first cover member 2.
  • Reference numeral 8 denotes the second cover member, which is formed by boring nozzle communicating holes 9, 9' and communicating holes 10, 10' similarly in a ceramic plate made of zirconia or the like so that the positions of these holes 9, 9' and 10, 10' can match the positions of the pressure generating chambers 7, 7' respectively.
  • the nozzle communicating holes 9, 9' connect the nozzle openings 18, 18' to the pressure generating chambers 7, 7', and the communicating holes 10, 10' connect the pressure generating chambers 7, 7' to the ink supply ports 12, 12'.
  • These members 2, 6, 8 are assembled into the actuator unit without using an adhesive. That is, these members 2, 6, 8 are formed by molding a clay-like ceramic material into predetermined shapes and laminating and sintering such shapes.
  • Reference numeral 11 denotes an ink supply port forming board, which serves also as an actuator unit fixing board.
  • the ink supply port forming board 11 is formed by boring the ink supply ports 12, 12' and nozzle communicating holes 13, 13'.
  • the ink supply ports 12, 12' determine passage resistance between the pressure generating chambers 7, 7' and the common ink chambers 16, 16'.
  • the nozzle communicating holes 13, 13' connect the pressure generating chambers 7, 7' to the nozzle openings 18, 18'.
  • Reference numeral 15 denotes a common ink chamber forming board, which is formed by boring through holes that correspond to the shape of the common ink chambers 16, 16' and communicating holes 17, 17' that connect the nozzle openings 18, 18' to the pressure generating chambers 7, 7'.
  • These through holes and communicating holes are formed in a corrosion-resistant plate such as a stainless steel plate having such a suitable thickness as to form the common ink chambers 16, 16', such thickness being, e.g., 150 ⁇ m.
  • Reference numeral 19 denotes a nozzle plate, which is formed by forming the nozzle openings 18, 18' in the form of arrays at positions communicable with not only nozzle communicating holes 9, 9' of the actuator unit, the communicating holes 13, 13' of the ink supply port forming board 11, and the communicating holes 17, 17' of the common ink chamber forming board 15.
  • These ink supply port forming board 11, common ink chamber forming board 15, and nozzle plate 19 are assembled into a passage unit 20 with adhesive layers interposed therebetween, each adhesive layer being formed of a thermal deposition film, an adhesive, or the like.
  • the thus constructed actuator unit and passage unit are fixed to each other through an adhesive layer, whereby the ink jet recording head is formed.
  • the present invention is characterized as positioning the pressure generating chambers 7, 7', the ink supply ports 12, 12', the communicating holes 10, 10', and the like in such a relationship as shown in Fig. 2. That is, a nozzle opening in one array is staggered by a plurality of dots with respect to a nozzle opening in the same array in the horizontal direction as viewed in Fig. 2. More specifically, nozzle openings 18-1, 18-2, 18-3 ⁇ ⁇ in one array are staggered with one another by a plurality of dots in the horizontal direction as viewed in Fig. 2, and the same applies to nozzle openings 18'-1, 18'-2, 18'-3 ⁇ ⁇ in the other array.
  • a nozzle opening in one array is staggered by half a pitch with respect to a corresponding nozzle opening in the other array. More specifically, the two arrays of nozzle openings 18-1, 18-2, 18-3 ⁇ ⁇ , 18'-1, 18'-2, 18'-3 ⁇ ⁇ are staggered not only horizontally in intra-array terms but also vertically in inter-array terms.
  • Pressure generating chambers are similarly positioned to stagger so that the pressure generating chambers confront the corresponding nozzle openings under a predetermined positional relationship. More specifically, the pressure generating chambers 7-1, 7-2, 7-3 ⁇ ⁇ corresponding to the nozzle openings 18-1, 18-2, 18-3 ⁇ ⁇ in one array are staggered with one another substantially by a plurality of dots in the horizontal direction as viewed in Fig.
  • a pressure generating chamber corresponding to one nozzle opening array is staggered by half a pitch with respect to a corresponding pressure generating chamber corresponding to the other nozzle opening array.
  • the communicating holes 9, 9', 13, 13', 17, 17' connecting the nozzle openings 18-1, 18-2, 18-3 ⁇ ⁇ , 18'-1, 18'-2, 18'-3 ⁇ ⁇ to the pressure generating chambers 7-1, 7-2, 7-3 ⁇ ⁇ , 7'-1, 7'-2, 7'-3 ⁇ ⁇ are positioned to stagger with one another so that the nozzle openings 18-1, 18-2, 18-3 ⁇ ⁇ , 18'-1, 18'-2, 18'-3 ⁇ ⁇ can be connected to the pressure generating chambers 7-1, 7-2, 7-3 ⁇ ⁇ , 7'-1, 7'-2, 7'-3 ⁇ ⁇ through linear passages, respectively.
  • communicating holes 10, 10' connecting the ink supply ports 12, 12' to the pressure generating chambers 7, 7' are arranged at such uniform positions relative to one another that ink from the ink supply ports 12, 12' can flow into predetermined positions of the pressure generating chambers 7, 7'.
  • the communicating holes 10 are positioned so that the shortest distance between adjacent communicating holes 10 and the shortest distance between adjacent nozzle communicating holes 9 connecting the nozzle openings 18 to the pressure generating chambers 7 are equal to and greater than 2L.
  • the shortest distance between adjacent nozzle communicating holes 9 connecting the nozzle openings 18 and the pressure generating chambers 7 is assumed to be 4L, then a bonding area close to each nozzle opening at which the flow of ink, in particular, greatly affects printing quality can be increased. Therefore, not only the flow of an adhesive into the nozzle openings 18, 18' can be prevented at the time of bonding, but also distortions close to the nozzle openings 18, 18' and the ink supply ports 12, 12' for which the operation of boring tiny through holes is required to be performed can be scattered,
  • the pressure generating portion (means) comprises the first chamber member 2, the piezoelectric vibrators 4 and lower and upper electrodes (not shown) shown in Fig. 1.
  • the pressure generating portion which comprises piezoelectric vibrating plates 100, lower electrodes 101 and upper electrodes so as to seal a surface of the space may be applied as shown in Fig. 4.
  • the pressure generating portion comprising cover plates 106, electrically conductive layer 103, heating cover plates 106, electrically conductive layer 103, heating elements 104 and protective layer 105 may be used as shown in Fig. 5.
  • Other constitutions which makes the pressure in the pressure generating chamber changer may be used for the present invention.
  • the present invention is characterized as not only forming nozzle openings so as to stagger but also arranging pressure generating chambers, communicating holes, and ink supply ports at uniform positions relative to one another so as to match a mode of arraying of the nozzle openings. Therefore, the bonding area can be increased by shifting the positions of the nozzle openings and ink supply ports, whose diameter is particularly small, in the axial direction of the pressure generating chambers. As a result, not only sufficient bonding strength can be ensured, but also the flow of an adhesive into these nozzle openings and ink supply ports can be prevented. In addition, distortions derived from the boring of the nozzle openings and the ink supply ports can be scattered to thereby ensure high positioning accuracy.
  • nozzle openings 18-1, 18-2, 18-3, .. .. are formed so as to stagger, and pressure generating chambers 7-1, 7-2, 7-3, .. .., communicating holes 10-1, 10-2, 10-3, ...., and ink supply ports 12 are arranged at uniform positions relative to one another with respect to the pressure generating chambers 7-1, 7-2, 7-3, .. .. so as to match a mode of arraying nozzle openings 18-1, 18-2, 18-3, .. ...
  • a bonding area is increased by shifting the positions of the nozzle openings 18-1, 18-2, 18-3, .. .., whose diameter is particularly small, in an axial direction of the pressure generating chambers 7-1, 7-2, 7-3, .. ...

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Claims (5)

  1. Tête feuilletée d'enregistrement à jets d'encre, comprenant :
    une unité à organes de manoeuvre et une unité à passages, l'unité à passages étant collée à l'unité à organes de manoeuvre,
    dans laquelle l'unité à organes de manoeuvre comprend
    des chambres génératrices de pression (7-1, 7-2, 7-3,...) destinées à mettre l'encre sous pression, et
    des dispositifs générateurs de pression (4, 4') disposés sur les chambres génératrices de pression (7-1, 7-2, 7-3, ...),
    les dispositifs générateurs de pression (4, 4') mettant les chambres génératrices de pression (7-1, 7-2, 7-3,...) sous pression pour projeter l'encre, et
    l'unité à passages comprend
    des orifices (12) d'alimentation en encre des chambres génératrices de pression (7-1, 7-2, 7-3,...) de l'unité à organes de manoeuvre, et
    des ouvertures de buse (18-1, 18-2, 18-3,...) par lesquelles l'encre peut être projetée vers l'extérieur, et dans laquelle
    les orifices (12) d'alimentation en encre, les chambres génératrices de pression (7-1, 7-2, 7-3,...) et les ouvertures de buse communiquent par des trous de communication (10-1, 10-2, 10-3,...), les trous de communication étant formés dans l'unité à organes de manoeuvre et l'unité à passages,
       caractérisée en ce que
    les ouvertures de buse (18-1, 18-2, 18-3,...) sont disposées avec un ordre décalé, et
    les chambres génératrices de pression (7-1, 7-2, 7-3,...), les trous de communication (10-1, 10-2, 10-3,...) et les orifices (12) d'alimentation en encre sont aussi arrangés dans l'ordre décalé correspondant à l'arrangement des ouvertures de buse (18-1, 18-2, 18-3,...) et sont assemblés par groupe, chaque groupe comprenant comme élément l'une des chambres génératrices de pression, l'un des trous de communication et l'un des orifices d'alimentation en encre, et
    dans laquelle les éléments de chacun des groupes sont arrangés à des positions uniformes les uns par rapport aux autres.
  2. Tête d'enregistrement à jets d'encre selon la revendication 1, dans laquelle l'unité à organes de manoeuvre comprend :
    une plaque (6) formant des chambres génératrices de pression (7, 7'),
    un premier organe de couvercle (2) destiné à sceller une surface de la plaque (6) formant les chambres génératrices de pression, des vibrateurs piézoélectriques (4, 4') étant placés sur lui, et
    un second organe de couvercle (8) destiné à sceller l'autre surface de la plaque (6) formant les chambres génératrices de pression et ayant des premiers trous de communication (9, 9') qui relient les orifices (12, 12') d'alimentation en encre aux chambres génératrices de pression (7, 7') et des seconds trous de communication (10, 10') qui relient les chambres génératrices de pression (7, 7') aux ouvertures de buse (18-1, 18-2, 18-3,...) de l'unité à passages, et
    l'unité à passages comprend :
    une plaque (11) de formation des orifices d'alimentation en encre (12, 12') et ayant des troisièmes trous de communication (13, 13') qui communiquent avec les chambres génératrices de pression (7, 7'),
    une plaque (15) formant des chambres communes d'encre, ayant des chambres communes d'encre (16, 16') qui communiquent avec les chambres génératrices de pression (7, 7') par les orifices d'alimentation en encre (12, 12') et les quatrièmes trous de communication (17, 17') qui communiquent avec les chambres génératrices de pression (7, 7'), et
    une plaque à buses (19) destinée à sceller une surface de la plaque (15) formant les chambres communes d'encre et ayant des ouvertures de buse (18, 18') connectées aux chambres génératrices de pression (7, 7') par les seconds, troisièmes et quatrièmes trous de communication (10, 10' ; 13, 13' ; 17, 17').
  3. Tête d'enregistrement à jets d'encre selon la revendication 2, dans laquelle, si l'on suppose que la distance comprise entre les premiers trous de communication (9, 9') formés dans le second organe de couvercle (8) pour relier l'orifice d'alimentation en encre (12, 12') à la chambre génératrice de pression (7, 7') dans la direction d'arrangement des ouvertures de buse est égale à L, les premiers trous de communication (9, 9') sont positionnés afin que la plus courte distance entre les premiers trous de communication (9, 9') et la plus courte distance entre les seconds trous de communication (10, 10') formés dans le second organe de couvercle (8) pour relier la chambre génératrice de pression (7, 7') à l'ouverture de buse sont égales ou supérieures à 2L.
  4. Tête d'enregistrement à jets d'encre selon l'une quelconque des revendications 1 à 3, dans laquelle l'unité à organes de manoeuvre et l'unité à passages sont collées par un adhésif.
  5. Tête d'enregistrement à jets d'encre selon la revendication 3, dans laquelle la plus courte distance entre les premiers trous de communication (9, 9') et la plus courte distance entre les seconds trous de communication (10, 10') formés dans le second organe de couvercle (8) pour relier la chambre génératrice de pression (7, 7') à l'ouverture de buse sont égales à 4L.
EP97105639A 1996-04-04 1997-04-04 Tête stratifiée d'enregistrement à jet d'encre Expired - Lifetime EP0799699B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8108382A JPH09272205A (ja) 1996-04-04 1996-04-04 積層型インクジェット式記録ヘッド
JP108382/96 1996-04-04
JP10838296 1996-04-04

Publications (3)

Publication Number Publication Date
EP0799699A2 EP0799699A2 (fr) 1997-10-08
EP0799699A3 EP0799699A3 (fr) 1998-12-23
EP0799699B1 true EP0799699B1 (fr) 2001-07-25

Family

ID=14483363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105639A Expired - Lifetime EP0799699B1 (fr) 1996-04-04 1997-04-04 Tête stratifiée d'enregistrement à jet d'encre

Country Status (4)

Country Link
US (1) US6024436A (fr)
EP (1) EP0799699B1 (fr)
JP (1) JPH09272205A (fr)
DE (1) DE69705760T2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6017112A (en) * 1997-11-04 2000-01-25 Lexmark International, Inc. Ink jet printing apparatus having a print cartridge with primary and secondary nozzles
JP3327246B2 (ja) * 1999-03-25 2002-09-24 富士ゼロックス株式会社 インクジェット記録ヘッド及びその製造方法
US6315390B1 (en) * 1999-04-05 2001-11-13 Seiko Epson Corporation Line ink jet head and a printer using the same
US6502920B1 (en) * 2000-02-04 2003-01-07 Lexmark International, Inc Ink jet print head having offset nozzle arrays
JP4161881B2 (ja) * 2003-11-13 2008-10-08 ソニー株式会社 液体吐出方法
JP5782878B2 (ja) * 2011-07-12 2015-09-24 セイコーエプソン株式会社 液体噴射ヘッド及び液体噴射装置
GB2536942B (en) 2015-04-01 2018-01-10 Xaar Technology Ltd Inkjet printhead
GB2562444A (en) * 2016-09-16 2018-11-21 Xaar Technology Ltd Droplet deposition head and actuator component therefor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502059A (en) * 1982-08-20 1985-02-26 Xerox Corporation Electrical interconnection system
JPS61283554A (ja) * 1985-06-10 1986-12-13 Ricoh Co Ltd インクジエツトヘツドの振動ユニツト
US4680595A (en) * 1985-11-06 1987-07-14 Pitney Bowes Inc. Impulse ink jet print head and method of making same
US4771298A (en) * 1986-09-17 1988-09-13 International Business Machine Corporation Drop-on-demand print head using gasket fan-in
US5245244A (en) * 1991-03-19 1993-09-14 Brother Kogyo Kabushiki Kaisha Piezoelectric ink droplet ejecting device
JP3144948B2 (ja) * 1992-05-27 2001-03-12 日本碍子株式会社 インクジェットプリントヘッド
DE69417347T2 (de) * 1993-06-03 1999-11-04 Seiko Epson Corp., Tokio/Tokyo Aufzeichnungskopf nach der tintenstrahlart
DE4336416A1 (de) * 1993-10-19 1995-08-24 Francotyp Postalia Gmbh Face-Shooter-Tintenstrahldruckkopf und Verfahren zu seiner Herstellung
US5748214A (en) * 1994-08-04 1998-05-05 Seiko Epson Corporation Ink jet recording head
JP2881616B2 (ja) * 1995-11-30 1999-04-12 日本電気株式会社 インクジェット式ヘッド装置

Also Published As

Publication number Publication date
US6024436A (en) 2000-02-15
EP0799699A2 (fr) 1997-10-08
EP0799699A3 (fr) 1998-12-23
HK1003628A1 (en) 1998-11-06
DE69705760T2 (de) 2002-05-23
JPH09272205A (ja) 1997-10-21
DE69705760D1 (de) 2001-08-30

Similar Documents

Publication Publication Date Title
US5790155A (en) Ink jet type recording head having head units with angled walls and angled pressure generating chambers
EP0426473B1 (fr) Tête d'impression par gouttelettes à la demande
US5818482A (en) Ink jet printing head
US6945636B2 (en) Ink-jet head, method for manufacturing ink-jet head and ink-jet printer having ink-jet head
EP1170127B1 (fr) Tête d'enregistrement par jet d'encre
JPS6340672B2 (fr)
US6033058A (en) Actuator for an ink jet print head of the layered type with offset linear arrays of pressure generating chamber
US5907340A (en) Laminated ink jet recording head with plural actuator units connected at outermost ends
EP0799699B1 (fr) Tête stratifiée d'enregistrement à jet d'encre
JP3610987B2 (ja) 積層型インクジェット式記録ヘッド
US6305792B1 (en) Ink jet recording head
EP1459899B1 (fr) Tête à jet d'encre et son procédé de fabrication
JP3702919B2 (ja) インクジェット式記録ヘッド
HK1003628B (en) Laminated ink jet recording head
EP0985536B1 (fr) Tête d'enregistrement du type à jet d'encre
JP4560888B2 (ja) インクジェットヘッド
JP2006181958A (ja) インクジェットヘッドの製造方法及びインクジェットヘッド
JP4049303B2 (ja) インクジェット記録ヘッド
JP2003145778A (ja) 積層型インクジェット式記録ヘッド
JP2004188687A (ja) インクジェットヘッドおよびインクジェット式記録装置
HK1002311B (en) Ink jet type recording head

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19990202

17Q First examination report despatched

Effective date: 19991217

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 69705760

Country of ref document: DE

Date of ref document: 20010830

EN Fr: translation not filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

EN Fr: translation not filed

Free format text: BO 01/51 PAGES: 265, IL Y A LIEU DE SUPPRIMER: LA MENTION DE LA NON REMISE. LA REMISE EST PUBLIEE DANS LE PRESENT BOPI.

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080312

Year of fee payment: 12

Ref country code: DE

Payment date: 20080411

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080428

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080409

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090404

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20091231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090404

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090404